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WFPC2 ISR 95-04
A Demonstration Analysis Script for Performing Aperture Photometry
Brad Whitmore and Inge Heyer
July 1995
Abstract
A demonstration IRAF/STSDAS script to perform aperture photometry on WFPC2 images of Omega-Cen has been developed and is described in this document. The primary goal is to provide an easy-to-use example that can help introduce observers to the use of scripts, and to demonstrate a few of the commonly used IRAF/STSDAS capabilities. *1 Two sections of auxiliary information are included. One section provides information on how to download the script and notes on running the script. The other section provides a list of other commonly used IRAF and STSDAS tasks for working with WFPC2 data, along with other useful information.
Portion of the Omega-Cen field showing two of the stars in common with Harris et al. (white squares and numbers) and the fainter objects (black circles and numbers).
- A Demonstration Analysis Script for Performing Aperture Photometry
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- Abstract
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- 1. - A Description of the Script
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- Step 1: Remove Working Files
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- Step 2: Cosmic Ray Removal
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- Step 3: Hot Pixel Removal
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- Step 4: Trim Off the Region Occulted by the Pyramid
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- Step 5: Identify the Object
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- Step 6: Aperture Photometry
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- Step 7: Merge the Tables into one Table and Calculate the Mean Value of (F555W - F814W)
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- Step 8: Compare the Results with Harris et al.
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- Step 9: Display the Image and Mark the Objects
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- Step 10: Use IGI to Plot the Color-Magnitude Diagram
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- Step 11: Make a LaTeX File and Preview the Results
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- 2. - Downloading the Files and Notes for Running the Script
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- 3. - IRAF/STSDAS Tasks Used in This Script
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- Some general information:
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- Relevant WWW Addresses
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